GHK-Cu

Listings: 10; from 10 vendors
Verified COA: 4/10; named third-party lab, linked report
Best verified per mg: €0.58; Lab Peptides France · 50mg
Lowest price: €29.00; Lab Peptides France · 50mg

All listings

Sorted by price per mg, cheapest first.

PeptidesDirectIntegrity issue
100mg€34.99€0.35 /mg
Claimed, unverifiedPurity
Vendor links a named-lab report on the product page, but PeptideCompare directly confirmed that this vendor's AOD-9604 listing links a Janoshik report belonging to a different company (Client: Telegram @tracyfromqsc, Manufacturer: QSC) — not PeptidesDirect. Given confirmed misattribution on at least one listing, no lab link from this vendor is trusted until its Client field is individually checked to show PeptidesDirect itself
Lab Peptides France
50mg€29.00€0.58 /mgBest value
Verified COAPurity
Janoshik, unique verification key per product✓ Verifiable via Janoshik Analytical
Primal Peptides
50mg€39.99€0.80 /mg
Verified COAPurity
Janoshik Analytical✓ Verifiable via Janoshik Analytical
Cellpept
50mg€50.00€1.00 /mg
Verified COAPurity · Endotoxins · Heavy metals
Janoshik-linked purity, endotoxin, and heavy metals reports on the product page✓ Verifiable via Janoshik Analytical
Pepspan
50mg€59.90€1.20 /mg
Verified COAPurity
Janoshik Analytical (Prague), QR per vial✓ Verifiable via Janoshik Analytical
Ultimate Biolabs
50mg€59.99€1.20 /mg
No documentation
No COA link shown
Particle Peptides
50mg€67.99€1.36 /mg
Claimed, unverifiedPurity
Claims independent testing, link not confirmed
Baltic BioLabs
size varies€34.99—
Claimed, unverifiedPurity
Claims per-batch COA; exact size not confirmed
CertaPeptides
size varies€39.99—
Claimed, unverifiedPurity
Vendor advertises 49 published Janoshik COAs, but on inspection the specific Janoshik-tested lot is often a different size than the cheapest/tracked listing (confirmed for BPC-157: only the 20mg lot is Janoshik-verified) — treating as unconfirmed for the specific size/price tracked here
Peptiden Store
size varies€34.95—
Claimed, unverifiedPurity
Claims documented analysis certs, none linked

Prices gathered by hand from public storefronts, September 2026 — prices, stock and promotions change often; confirm on the vendor's site before buying. See the methodology for how "Verified COA" is decided.